Customer
Client Payer
Wingspan to Kintsugi
Use the client relationship as the buyer match in the custom flow. Add the selected tax address and buyer facts from their source of record. Keep the match when billing contacts change.
Tax calculation integration
Use Kintsugi's API in a custom client billing flow to estimate sales tax, VAT, or GST. Start with client locations, service codes, and bill lines. Review the result before sending the bill. Record the sale through your selected billing path and link later credit notes to the original transaction.
Kintsugi Connect client bills to tax records
Kintsugi
Customer
Wingspan
Client Payer
Kintsugi
Product category and subcategory
Wingspan
Client invoice service classification
Kintsugi
Estimate line items
Wingspan
Client invoice line items
Choose the client billing records your tax flow uses and when they move. Set who reviews tax and keeps each sale record.
Use a Kintsugi estimate to review the planned sale. Check the line amounts, buyer location, and service type together. Keep the reviewed result with the bill draft. Recalculate when those inputs change so your team reviews the current bill.
Match repeat services to a shared product list. Kintsugi products hold a category and subcategory for tax. Use those choices across client bills. Give your team a clear review step when it adds a service or changes what a client buys.
Kintsugi supports full and partial credit notes linked to a sale. Keep that link in your billing records. Finance then has the bill and correction together when checking tax, credit amounts, and the books.
A draft estimate helps your team review tax before a bill is final. A recorded sale keeps the facts used for tax reporting. Kintsugi provides both through its API. Build a custom billing path around your Wingspan client and invoice inputs. Name an owner for each step.
Keep service codes and client matches stable as bills change. Choose how your billing system stores tax and shows the total. Retain the sale date and bill reference when recording a sale. Use that same trail for later credits.
Choose which tool holds each record. Map the client bill inputs your tax flow needs. Use the tax results and sale records to support review and reporting.
Client Payer
Wingspan to Kintsugi
Use the client relationship as the buyer match in the custom flow. Add the selected tax address and buyer facts from their source of record. Keep the match when billing contacts change.
Client invoice service classification
Wingspan to Kintsugi
Map the billed service to its Kintsugi product or reviewed service category. Check new service types with your tax team. Retain the mapping so repeat bills use the same reviewed classification.
Client invoice line items
Wingspan to Kintsugi
Use the draft lines, currency, and date for the estimate. Keep a stable line match. Review tax alongside service amounts and confirm how your billing system shows the final bill total.
Client invoice reference
Reference or reporting
Keep the client bill reference with the chosen Kintsugi sale record. Select the event that records the sale. Use the real sale date to match it to the right period in the books.
Client bill adjustment context
Reference or reporting
Link each credit to the original sale and lines credited. Keep the billing correction and tax record together. Track returned funds in the chosen collection system.
Client tax context
Reference or reporting
Choose how the client's exemption facts enter the tax flow. Review their region, dates, and supporting record. Keep the buyer match and review owner clear when a client adds new locations or services.
01
Your billing team prepares a client bill.
Check buyer location and service codes with the bill lines. Request an estimate through the custom flow. Review the line tax and total. Keep the inputs and result with the draft. Recheck after a change in address, price, or service. Approve the tax shown by your chosen billing system before sending the bill.
02
The sale reaches the agreed recording event.
Keep the bill reference and sale date with the Kintsugi transaction. Check the state and tax after processing. Confirm the committed state before using the sale for filing. Match the sale to the bill and books. Track client payment with its own record in the chosen collection path.
03
Your team approves a full or partial credit.
Start with the original sale and the bill lines being credited. Link the Kintsugi credit note to that sale. Keep the approved credit amount and its date in the billing records. Review the tax correction with the credit before close. Match any payment refund to its own collection record. For a filed period, have your tax team choose the correction path that fits the recorded sale.
Scope the tax flow to the business that issues the bill. Choose the Kintsugi account and connection for that business. Keep client, product, and transaction references within that scope. Review the ownership rules when one finance team serves several entities or billing systems.
Check active tax registrations for the selling business. Choose the client address and exemption evidence for each billing path. Review a zero-tax result with those facts in view. Have a qualified tax professional confirm the treatment for your services and clients.
Name the system that creates the bill and shows tax in the total. Choose one tax calculation owner for that path. Set the steps for saving results, recording sales, and handling credits. Keep client sales tax with billing and worker pay with its agreed pay process.
Plan client tax and worker pay as distinct flows. Link the work to the client bill and keep a clear owner for each tax record.

Tax calculation
Use a custom connection to bring Zamp tax review into your client billing flow. Match billed services to tax codes. Review tax by line before you send a bill. Keep final sales and refunds linked to the client invoice. Choose the billing and filing setup that fits your team.
Explore integration
Tax calculation
Use a custom connection to review Numeral tax for your client bills. Match services, client details and prices to a tax result. Keep that result linked to the completed sale. Use the sale reference for full or partial refunds. Set the billing and reporting path for your business.
Explore integration
API & custom
Connect your internal apps to Wingspan with the Custom API integration. Sync worker records, assignments, and approved work. Worker types include Contractor and W-2. Contractor pay uses invoices and payables. W-2 pay uses pay statements and employee payroll runs. Read check and payment status in your own tools.
Explore integrationBring client bills, tax review, and sale records together. We’ll help you set up the flow your team needs.
Discuss your integration