diff --git a/app/account-services.go b/app/account-services.go
index 2fb0c4c..682e8b9 100644
--- a/app/account-services.go
+++ b/app/account-services.go
@@ -8,6 +8,44 @@ import (
 	"code.tnxs.net/taxnexus/lib/api/geo/geo_models"
 )
 
+// GetDefaultDeliveryAddress is an account helper function
+func GetDefaultDeliveryAddress(obj *Account, principal *User) (*Address, error) {
+	var deliveryAddress Address
+	theContact, err := GetContactByID(obj.DefaultDeliveryContactID, principal)
+	if err != nil {
+		sugar.Errorf("ops.getDefaultAddress: 💣 ⛔ theAccount.Defaultdeliverycontactid invalid %w", err)
+		if obj.ShippingAddress == nil {
+			if obj.BillingAddress == nil {
+				return nil, fmt.Errorf("ops.GetDefaultDeliveryAddress: 💣 ⛔ can't find any valid addresses")
+			}
+			deliveryAddress = *obj.BillingAddress
+		} else {
+			deliveryAddress = *obj.ShippingAddress
+		}
+	} else {
+		if theContact.MailingAddress == nil {
+			sugar.Errorf(
+				"ops.getDefaultDeliveryAddress: 💣 ⛔ default delivery contact has no email, id = %s",
+				obj.DefaultBackendID,
+			)
+			if obj.ShippingAddress == nil {
+				if obj.BillingAddress == nil {
+					return nil, fmt.Errorf("ops.GetDefaultDeliveryAddress: 💣 ⛔ can't find any valid addresses")
+				}
+				deliveryAddress = *obj.BillingAddress
+			} else {
+				deliveryAddress = *obj.ShippingAddress
+			}
+		} else {
+			deliveryAddress = *theContact.MailingAddress
+		}
+	}
+	if deliveryAddress.City == "" || deliveryAddress.State+deliveryAddress.StateCode == "" {
+		return nil, fmt.Errorf("ops.getDefaultDeliveryAddress: 💣 ⛔ city or state+statecode is blank: %v", deliveryAddress)
+	}
+	return &deliveryAddress, nil
+}
+
 // GetAccount is first class retrieval function
 func GetAccount(key string, principal *User) *Account {
 	if key == "" {
@@ -26,13 +64,13 @@ func GetAccount(key string, principal *User) *Account {
 
 // GetAccountByID retrieves and enriches an Account object instance
 func GetAccountByID(recordID string, principal *User) (*Account, error) {
-	sugar.Debug("app.GetAccountByID: 📥")
+	sugar.Debug("GetAccountByID: 📥")
 	if recordID == "" {
-		return nil, fmt.Errorf("app.getAccountByID: 💣 ⛔ key is blank")
+		return nil, fmt.Errorf("getAccountByID: 💣 ⛔ key is blank")
 	}
 	obj, ok := accountCache.get(recordID)
 	if ok {
-		sugar.Debug("app.getAccountByID: 👍 🎯 📤")
+		sugar.Debug("getAccountByID: 👍 🎯 📤")
 		return obj, nil
 	}
 	crmParams := accounts.NewGetAccountsParamsWithTimeout(getTimeout)
@@ -47,7 +85,7 @@ func GetAccountByID(recordID string, principal *User) (*Account, error) {
 	}
 	finalObj := theObj.Enrich(principal)
 	accountCache.put(recordID, finalObj)
-	sugar.Debug("app.getAccountByID: 👍 🆕 📤")
+	sugar.Debug("getAccountByID: 👍 🆕 📤")
 	return finalObj, nil
 }
 
@@ -153,7 +191,7 @@ func (obj *Account) Enrich(principal *User) *Account {
 
 // GetCoordinate is a first class retrieval function
 func (obj *Account) GetCoordinate(principal *User) *Coordinate {
-	sugar.Debug("app.Account.getCoordinate: 📥")
+	sugar.Debug("Account.getCoordinate: 📥")
 	if obj.CoordinateID != "" { // if CoordinateID is set, then just get it
 		geoParams := coordinate.NewGetCoordinatesParamsWithTimeout(getTimeout)
 		geoParams.CoordinateID = &obj.CoordinateID
@@ -168,7 +206,7 @@ func (obj *Account) GetCoordinate(principal *User) *Coordinate {
 		return obj
 	} // else get it via addresses, shipping #1, Business #2
 	if obj.ShippingAddress.ToString() == "" && obj.BillingAddress.ToString() == "" {
-		sugar.Errorf("app.Account.getCoordinate: 💣 ⛔ billing and shipping address both blank")
+		sugar.Errorf("Account.getCoordinate: 💣 ⛔ billing and shipping address both blank")
 		return nil
 	}
 	theAddress := obj.ShippingAddress.ToString()
@@ -186,6 +224,6 @@ func (obj *Account) GetCoordinate(principal *User) *Coordinate {
 	for _, itm := range response.Payload.Data { // single iteration execution
 		swag = itm
 	}
-	sugar.Debug("app.Account.getCoordinate: 👍 📤")
+	sugar.Debug("Account.getCoordinate: 👍 📤")
 	return UnMarshalCoordinate(swag, principal)
 }
diff --git a/app/accountingrule-cache.go b/app/accountingrule-cache.go
new file mode 100644
index 0000000..bf483e2
--- /dev/null
+++ b/app/accountingrule-cache.go
@@ -0,0 +1,28 @@
+package app
+
+import (
+	"sync"
+
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_models"
+)
+
+var accountingRuleCache = accountingRuleCacheType{
+	obj: map[string]map[string]*ledger_models.AccountingRule{},
+}
+
+type accountingRuleCacheType struct {
+	sync.RWMutex
+	obj map[string]map[string]*ledger_models.AccountingRule
+}
+
+func (m *accountingRuleCacheType) get(accountID string) (map[string]*ledger_models.AccountingRule, bool) {
+	m.RLock()
+	defer m.RUnlock()
+	r, ok := m.obj[accountID]
+	return r, ok
+}
+func (m *accountingRuleCacheType) put(accountID string, rules map[string]*ledger_models.AccountingRule) {
+	m.Lock()
+	defer m.Unlock()
+	m.obj[accountID] = rules
+}
diff --git a/app/accountingrule-services.go b/app/accountingrule-services.go
new file mode 100644
index 0000000..34448e6
--- /dev/null
+++ b/app/accountingrule-services.go
@@ -0,0 +1,34 @@
+package app
+
+import (
+	"fmt"
+
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_client/accounting_rule"
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_models"
+)
+
+// GetAccountingRulesByAccountID is a first class object retrieval method
+func GetAccountingRulesByAccountID(
+	accountID string,
+	principal *User,
+) (map[string]*ledger_models.AccountingRule, error) {
+	sugar.Debug("ops.getAccountingRulesByAccountID: 📥")
+	obj, ok := accountingRuleCache.get(accountID)
+	if ok {
+		sugar.Debugf("ops.getAccountingRulesByAccountID: 👍 📤 🎯 n = %v", len(obj))
+		return obj, nil
+	}
+	ledgerParams := accounting_rule.NewGetAccountingRulesParamsWithTimeout(getTimeout)
+	ledgerParams.AccountID = accountID
+	response, restErr := ledgerClient.AccountingRule.GetAccountingRules(ledgerParams, principal.Auth)
+	if restErr != nil {
+		return nil, fmt.Errorf("ops.getAccountingRulesByAccountID: 💣 ⛔ %w", restErr)
+	}
+	theRules := map[string]*ledger_models.AccountingRule{}
+	for _, itm := range response.Payload.Data {
+		theRules[itm.Code] = itm
+	}
+	sugar.Debugf("ops.getAccountingRulesByAccountID: 👍 📤 n = %v", len(theRules))
+	accountingRuleCache.put(accountID, theRules)
+	return theRules, nil
+}
diff --git a/app/accountingruleset-cache.go b/app/accountingruleset-cache.go
new file mode 100644
index 0000000..c399c44
--- /dev/null
+++ b/app/accountingruleset-cache.go
@@ -0,0 +1,29 @@
+package app
+
+import (
+	"sync"
+
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_models"
+)
+
+var accountingRulesetCache = accountingRulesetCacheType{
+	obj: map[string]map[string]*ledger_models.AccountingRuleset{},
+}
+
+type accountingRulesetCacheType struct {
+	sync.RWMutex
+	obj map[string]map[string]*ledger_models.AccountingRuleset
+}
+
+func (m *accountingRulesetCacheType) get(accountID string) (map[string]*ledger_models.AccountingRuleset, bool) {
+	m.RLock()
+	defer m.RUnlock()
+	r, ok := m.obj[accountID]
+	return r, ok
+}
+
+func (m *accountingRulesetCacheType) put(accountID string, rules map[string]*ledger_models.AccountingRuleset) {
+	m.Lock()
+	defer m.Unlock()
+	m.obj[accountID] = rules
+}
diff --git a/app/accountingruleset-services.go b/app/accountingruleset-services.go
new file mode 100644
index 0000000..29d7c46
--- /dev/null
+++ b/app/accountingruleset-services.go
@@ -0,0 +1,32 @@
+package app
+
+import (
+	"fmt"
+
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_client/accounting_ruleset"
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_models"
+)
+
+func GetAccountingRulesetsByAccountID(
+	accountID string,
+	principal *User,
+) (map[string]*ledger_models.AccountingRuleset, error) {
+	obj, ok := accountingRulesetCache.get(accountID)
+	if ok {
+		sugar.Debugf("ops.getAccountingRulesetsByAccountID: 👍 📤 🎯 n = %v", len(obj))
+		return obj, nil
+	}
+	params := accounting_ruleset.NewGetAccountingRulesetsParamsWithTimeout(getTimeout)
+	params.AccountID = accountID
+	response, restErr := ledgerClient.AccountingRuleset.GetAccountingRulesets(params, principal.Auth)
+	if restErr != nil {
+		return nil, fmt.Errorf("ops.getAccountingRulesetsByAccountID: 💣 ⛔ %w", restErr)
+	}
+	theRulesets := map[string]*ledger_models.AccountingRuleset{}
+	for _, itm := range response.Payload.Data {
+		theRulesets[itm.Code] = itm
+	}
+	sugar.Debugf("ops.getAccountingRulesetsByAccountID: 👍 📤 n = %v", len(theRulesets))
+	accountingRulesetCache.put(accountID, theRulesets)
+	return theRulesets, nil
+}
diff --git a/app/address-services.go b/app/address-services.go
new file mode 100644
index 0000000..6c4536d
--- /dev/null
+++ b/app/address-services.go
@@ -0,0 +1,50 @@
+package app
+
+import (
+	"fmt"
+
+	"code.tnxs.net/taxnexus/lib/api/geo/geo_models"
+)
+
+type GeocodeAddressParams struct {
+	BusinessAddress *Address
+	Account         *Account
+	Ref             string
+}
+
+func GeocodeAddress(params GeocodeAddressParams, principal *User) (*geo_models.CoordinateBasic, error) {
+	if params.BusinessAddress == nil {
+		sugar.Infof("ops.geocodeAddress: ❗ Business Address is null, ref = %s", params.Ref)
+		deliveryAddress, acctErr := GetDefaultDeliveryAddress(params.Account, principal)
+		if acctErr != nil {
+			return nil, fmt.Errorf("ops.geocodeAddress: 💣 ⛔ can't determine default delivery address: %w", acctErr)
+		}
+		params.BusinessAddress = deliveryAddress
+	}
+	if params.BusinessAddress.City == "" {
+		sugar.Infof("ops.geocodeAddress: ❗ Business Address is blank, ref = %s", params.Ref)
+		deliveryAddress, acctErr := GetDefaultDeliveryAddress(params.Account, principal)
+		if acctErr != nil {
+			return nil, fmt.Errorf("ops.geocodeAddress: 💣 ⛔ can't determine default delivery address: %w", acctErr)
+		}
+		params.BusinessAddress = deliveryAddress
+	}
+	var situsCoordinate *geo_models.CoordinateBasic
+	aCoordinate, err := GetCoordinate(params.BusinessAddress, principal)
+	if err == nil {
+		situsCoordinate = aCoordinate
+	} else {
+		sugar.Infof("ops.geocodeAddress: ❗ can't geocode address: %w", err)
+		deliveryAddress, acctErr := GetDefaultDeliveryAddress(params.Account, principal)
+		if acctErr != nil {
+			return nil, fmt.Errorf("ops.geocodeAddress: 💣 ⛔ can't determine default delivery address: %w", acctErr)
+		}
+		aCoordinate, coordErr := GetCoordinate(deliveryAddress, principal)
+		if coordErr != nil {
+			return nil, fmt.Errorf("ops.geocodeAddress: 💣 ⛔ can't determine default delivery coordinates: %w", acctErr)
+		}
+		sugar.Infof("ops.geocodeAddress: ❗ alternate address used for ref = %s", params.Ref)
+		situsCoordinate = aCoordinate
+	}
+	return situsCoordinate, nil
+}
diff --git a/app/coordinate-cache.go b/app/coordinate-cache.go
new file mode 100644
index 0000000..934da3d
--- /dev/null
+++ b/app/coordinate-cache.go
@@ -0,0 +1,29 @@
+package app
+
+import (
+	"sync"
+
+	"code.tnxs.net/taxnexus/lib/api/geo/geo_models"
+)
+
+var coordinateCache = coordinateCacheType{
+	obj: map[string]*geo_models.CoordinateBasic{},
+}
+
+type coordinateCacheType struct {
+	sync.RWMutex
+	obj map[string]*geo_models.CoordinateBasic
+}
+
+func (m *coordinateCacheType) get(addrStr string) (*geo_models.CoordinateBasic, bool) {
+	m.RLock()
+	defer m.RUnlock()
+	r, ok := m.obj[addrStr]
+	return r, ok
+}
+
+func (m *coordinateCacheType) put(accountID string, coord *geo_models.CoordinateBasic) {
+	m.Lock()
+	defer m.Unlock()
+	m.obj[accountID] = coord
+}
diff --git a/app/coordinate-services.go b/app/coordinate-services.go
new file mode 100644
index 0000000..1d23ab3
--- /dev/null
+++ b/app/coordinate-services.go
@@ -0,0 +1,51 @@
+package app
+
+import (
+	"fmt"
+
+	"code.tnxs.net/taxnexus/lib/api/geo/geo_client/coordinate"
+	"code.tnxs.net/taxnexus/lib/api/geo/geo_models"
+)
+
+// GetCoordinate is a first class object retrieval method
+func GetCoordinate(addr *Address, principal *User) (*geo_models.CoordinateBasic, error) {
+	sugar.Debug("ops.getCoordinate: 📥")
+	if addr == nil {
+		return nil, fmt.Errorf("ops.getCoordinate: 💣 ⛔ Address cannot be nil")
+	}
+	if addr.ToString() == "" {
+		return nil, fmt.Errorf("ops.getCoordinate: 💣 ⛔ Address cannot be empty")
+	}
+	sugar.Debugf("ops.getCoordinate: 📏 address: %s", addr.ToString())
+	if addr.City == "" {
+		return nil, fmt.Errorf("ops.getCoordinate: 💣 ⛔ City cannot be blank")
+	}
+	obj, ok := coordinateCache.get(addr.ToString())
+	if ok {
+		sugar.Debugf("ops.GetCoordiante: 👍🏻 🎯 📤")
+		return obj, nil
+	}
+	placeName := addr.City + ", " + addr.StateCode
+	if addr.StateCode == "" {
+		placeName = addr.City + ", " + addr.State
+	}
+	coordParams := coordinate.NewGetCoordinateBasicParamsWithTimeout(getTimeout)
+	theAddress := addr.ToString()
+	coordParams.PlaceName = &placeName
+	coordParams.Address = &theAddress
+	response, geoErr := geoClient.Coordinate.GetCoordinateBasic(coordParams, principal.Auth)
+	if geoErr != nil {
+		return nil, fmt.Errorf("ops.getCoordinate: 💣 ⛔ failed, %s (%w)", *coordParams.Address, geoErr)
+	}
+	if len(response.Payload.Data) != 1 {
+		return nil, fmt.Errorf("ops.getCoordinate: 💣 ⛔ one and only one coordinate record should be returned")
+	}
+	sugar.Debugf("ops.getCoordinate: ✅ geo records retrieved = %d", len(response.Payload.Data))
+	var coord geo_models.CoordinateBasic
+	for _, itm := range response.Payload.Data {
+		coord = *itm
+	}
+	coordinateCache.put(addr.ToString(), &coord)
+	sugar.Debug("ops.getCoordinate: 👍 📤")
+	return &coord, nil
+}
diff --git a/app/glbalance-cache.go b/app/glbalance-cache.go
new file mode 100644
index 0000000..d56e733
--- /dev/null
+++ b/app/glbalance-cache.go
@@ -0,0 +1,38 @@
+package app
+
+import (
+	"sync"
+
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_models"
+)
+
+var glBalanceCache = glBalanceCacheType{
+	obj: map[string]map[string]*ledger_models.GlBalance{},
+}
+
+type glBalanceCacheType struct {
+	sync.RWMutex
+	obj map[string]map[string]*ledger_models.GlBalance
+}
+
+func (m *glBalanceCacheType) get(periodID, glAccountID string) (*ledger_models.GlBalance, bool) {
+	m.RLock()
+	defer m.RUnlock()
+	r, ok := m.obj[periodID][glAccountID]
+	return r, ok
+}
+
+func (m *glBalanceCacheType) put(periodID, glAccountID string, glBalance *ledger_models.GlBalance) {
+	m.init(periodID)
+	m.Lock()
+	defer m.Unlock()
+	m.obj[periodID][glAccountID] = glBalance
+}
+func (m *glBalanceCacheType) init(periodID string) {
+	m.RLock()
+	defer m.RUnlock()
+	_, ok := m.obj[periodID]
+	if !ok {
+		m.obj[periodID] = map[string]*ledger_models.GlBalance{}
+	}
+}
diff --git a/app/glbalance-services.go b/app/glbalance-services.go
new file mode 100644
index 0000000..edd05e1
--- /dev/null
+++ b/app/glbalance-services.go
@@ -0,0 +1,38 @@
+package app
+
+import (
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_client/gl_balance"
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_models"
+)
+
+// GlBalanceParams is a parameter struct
+type GlBalanceParams struct {
+	glAccountID string
+	periodID    string
+	principal   *User
+}
+
+// GetGlBalanceByParams is a GL balance helper function
+func GetGlBalanceByParams(params GlBalanceParams) *ledger_models.GlBalance {
+	sugar.Debug("ops.getGlBalanceByParams: 📥")
+	obj, ok := glBalanceCache.get(params.periodID, params.glAccountID)
+	if ok {
+		sugar.Debug("ops.getGlBalanceByParams: 👍 📤 🎯")
+		return obj
+	}
+	ledgerParams := gl_balance.NewGetGlBalancesParamsWithTimeout(getTimeout)
+	ledgerParams.GlAccountID = &params.glAccountID
+	ledgerParams.PeriodID = &params.periodID
+	response, restErr := ledgerClient.GlBalance.GetGlBalances(ledgerParams, params.principal.Auth)
+	if restErr != nil {
+		sugar.Errorf("ops.getGlBalanceByParams: 💣 ⛔ %s", restErr.Error())
+		return nil
+	}
+	theGlBalance := &ledger_models.GlBalance{}
+	for _, itm := range response.Payload.Data {
+		theGlBalance = itm // singleton
+	}
+	glBalanceCache.put(params.periodID, params.glAccountID, theGlBalance)
+	sugar.Debugf("ops.getGlBalanceByParams: 👍 📤")
+	return theGlBalance
+}
diff --git a/app/period-cache.go b/app/period-cache.go
new file mode 100644
index 0000000..aaa402d
--- /dev/null
+++ b/app/period-cache.go
@@ -0,0 +1,36 @@
+package app
+
+import "sync"
+
+var periodCache = periodCacheType{
+	obj: map[string]map[string]*CalendarPeriod{},
+}
+
+// periodCacheType maps [accountID][dateString]
+type periodCacheType struct {
+	sync.RWMutex
+	obj map[string]map[string]*CalendarPeriod
+}
+
+func (m *periodCacheType) get(accountID, dateStr string) (*CalendarPeriod, bool) {
+	m.RLock()
+	defer m.RUnlock()
+	r, ok := m.obj[accountID][dateStr]
+	return r, ok
+}
+
+func (m *periodCacheType) put(accountID, dateStr string, period *CalendarPeriod) {
+	m.init(accountID)
+	m.Lock()
+	defer m.Unlock()
+	m.obj[accountID][dateStr] = period
+}
+
+func (m *periodCacheType) init(accountID string) {
+	m.RLock()
+	defer m.RUnlock()
+	_, ok := m.obj[accountID]
+	if !ok {
+		m.obj[accountID] = map[string]*CalendarPeriod{}
+	}
+}
diff --git a/app/period-services.go b/app/period-services.go
new file mode 100644
index 0000000..25fc249
--- /dev/null
+++ b/app/period-services.go
@@ -0,0 +1,56 @@
+package app
+
+import (
+	"fmt"
+	"time"
+
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_client/period"
+)
+
+// CalendarPeriod is a parameter type
+type CalendarPeriod struct {
+	ID        string
+	Name      string
+	StartDate time.Time
+	EndDate   time.Time
+}
+
+// GetPeriodParams is a parameter type
+type GetPeriodParams struct {
+	Date      time.Time
+	AccountID string
+	Principal *User
+}
+
+// GetPeriodIDByDate is a period helper function
+func GetPeriodIDByDate(params GetPeriodParams) (string, error) {
+	sugar.Debug("ops.getPeriodIDByDate: 📥")
+	obj, ok := periodCache.get(params.AccountID, params.Date.Format(dateFormat))
+	if ok {
+		sugar.Debugf("ops.getPeriodIDByDate: 👍 📤 🎯")
+		return obj.ID, nil
+	}
+	ledgerDate := params.Date.Format(dateFormat)
+	ledgerParams := period.NewGetPeriodsParamsWithTimeout(getTimeout)
+	ledgerParams.AccountID = &params.AccountID
+	ledgerParams.Date = &ledgerDate
+	response, restErr := ledgerClient.Period.GetPeriods(ledgerParams, params.Principal.Auth)
+	if restErr != nil {
+		return "", fmt.Errorf("ops.getPeriodIDByDate: 💣 ⛔ dateStr = %s (%w)", params.Date, restErr)
+	}
+	// this loop should iterate just once
+	thePeriod := &CalendarPeriod{}
+	for _, itm := range response.Payload.Data {
+		startDate, _ := time.Parse(dateTimeFormat, itm.StartDate)
+		endDate, _ := time.Parse(dateTimeFormat, itm.EndDate)
+		thePeriod = &CalendarPeriod{
+			ID:        itm.ID,
+			EndDate:   endDate,
+			Name:      itm.Name,
+			StartDate: startDate,
+		}
+	}
+	periodCache.put(params.AccountID, params.Date.Format(dateFormat), thePeriod)
+	sugar.Debugf("ops.getPeriodIDByDate: 👍 📤 %s", thePeriod.Name)
+	return thePeriod.ID, nil
+}
diff --git a/app/root.go b/app/root.go
index e69f2a0..9aed395 100644
--- a/app/root.go
+++ b/app/root.go
@@ -9,6 +9,7 @@ import (
 	"code.tnxs.net/taxnexus/lib/api/auth0/auth0_client"
 	"code.tnxs.net/taxnexus/lib/api/crm/crm_client"
 	"code.tnxs.net/taxnexus/lib/api/geo/geo_client"
+	"code.tnxs.net/taxnexus/lib/api/ledger/ledger_client"
 	"code.tnxs.net/taxnexus/lib/api/ops/ops_client"
 	"code.tnxs.net/taxnexus/lib/api/regs/regs_client"
 	"code.tnxs.net/taxnexus/lib/api/stash/stash_client"
@@ -27,6 +28,7 @@ var config = Configuration{}
 var configured = false
 var crmClient = crm_client.Default
 var geoClient = geo_client.Default
+var ledgerClient = ledger_client.Default
 var opsClient = ops_client.Default
 var regsClient = regs_client.Default
 var stashClient = stash_client.Default
diff --git a/app/transaction-services.go b/app/transaction-services.go
new file mode 100644
index 0000000..be46e1f
--- /dev/null
+++ b/app/transaction-services.go
@@ -0,0 +1,28 @@
+package app
+
+import (
+	"code.tnxs.net/taxnexus/lib/api/regs/regs_client/transaction"
+	"code.tnxs.net/taxnexus/lib/api/regs/regs_models"
+)
+
+// PostTransactions is a first class object type storage method
+func PostTransactions(objList []*TaxTransaction, principal *User) error {
+	swagList := []*regs_models.Transaction{}
+	for _, itm := range objList {
+		swagList = append(swagList, &regs_models.Transaction{
+			AccountID:        itm.AccountID,
+			TaxTransactionID: itm.ID,
+			TaxTypeID:        itm.TaxTypeID,
+			Valid:            true,
+		})
+	}
+	regsParams := transaction.NewPostTransactionsParamsWithTimeout(postTimeout)
+	regsParams.TransactionRequest = &regs_models.TransactionRequest{
+		Data: swagList,
+	}
+	_, err := regsClient.Transaction.PostTransactions(regsParams, principal.Auth)
+	if err != nil {
+		return err
+	}
+	return nil
+}