The Platform PM

How it works

Field Guide

B2B payments: spend management

02

How it works

4 min read · Chapter 2 of 10

How a purchase moves, step by step

A card expense in five stages. Controls work only at authorization; once a charge clears, finance can only chase it. The receipt and the coding arrive later, and a charge that never gets a receipt can end up as the employee's taxable wages.

Two paths end in the same ledger, and on the card path the decision comes before the evidence.

The card path

  1. Company onboarded by the program manager under the bank's policy: KYB (checking who owns and runs the business), underwriting, a liability model (who owes the bank), a limit and settlement terms. What can go wrong: a decline or a smaller limit than asked, which can need a Reg B notice (telling the applicant why).
  2. Card issued. Virtual cards work at once; physical ones ship. Controls attach: merchant categories, amounts per purchase, day or month, merchant lock, expiry, single use.
  3. Authorized. Merchant, acquirer (the merchant's bank), network, then the issuer processor (which runs the card accounts for the bank). It checks balance, limit, card status and static controls, then gives the platform 2 to 3 seconds to approve, partly approve or decline. What can go wrong: a decline for limit or merchant type, or a timeout, where a default rule or the network's stand-in decides. This is the last chance to say no.
  4. Held. The authorization holds part of the limit; hotels add incremental authorizations. What can go wrong: a hotel hold eats the limit and the next swipe is declined. Say an engineer checks in for three nights at $250: the hotel may hold $900 or more against a $1,000 limit, and the team dinner that evening fails.
  5. Cleared. The merchant captures, usually within a day; hotels and airlines up to about a month later, sometimes for a different amount (tips, fuel, currency). On a charge card the bank's receivable starts here. What can go wrong: a late or forced capture posts after the card was canceled.
  6. Matched. Receipt, business purpose, attendees and GL code attached. What can go wrong: no receipt; the receipt's name or total doesn't match the card line.
  7. Approved. Manager for purpose, budget owner, finance audit if a rule flags it. What can go wrong: out of policy, and the employee owes the company.
  8. Settled. The company pays the card daily or on the statement date; under individual liability the employee pays the bank and claims it back. What can go wrong: past due after a short grace period (about five days at one public platform, which charges off at 120 days).
  9. In the ledger. A journal to the ERP with GL account, cost center and tax code (recoverable GST/HST, the 50% meals split); statement reconciled; period closed. What can go wrong: uncoded card spend at month end.

The out-of-pocket path

  1. Employee pays with a personal card or cash. Their float starts, and so does any legal clock.
  2. Captured: receipt photo, e-receipt or mileage log. What can go wrong: a lost receipt needs a signed statement plus corroboration.
  3. Submitted. What can go wrong: late. Illinois expects claims within 30 days unless policy allows longer; the IRS safe harbor wants proof within 60 days.
  4. Approved and audited, with a duplicate check against card lines.
  5. Paid by ACH or EFT, in the next payroll, or by check. What can go wrong: payroll adds one to two weeks; an ACH return; a check never cashed.
  6. In the ledger, coded like a card line.

The fastest quarter of companies approve and schedule a travel reimbursement in 3 days or less; the slowest take a week or more, according to APQC benchmarks reported in July 2023. Controls only work before the money moves; after that the product is collecting evidence, and the law wants the same evidence whichever path the money took.

Ways employees spend company money, compared

Corporate charge card

Who funds it
Bank; company pays in full
Who owes
Company (fintechs); employee or both (many bank programs)
Controls
Category, amount, merchant, at authorization
Receipt burden (US)
Lodging always, other items from $75
Cost and earnings
Merchant pays about 2.5-2.7% + 10¢; rebate about 1-1.5%
Speed
Instant; clears in 1 to 3 days

Revolving business card

Who funds it
Bank lends
Who owes
Company, often with a personal guarantee
Controls
Card-level limits
Receipt burden (US)
Same
Cost and earnings
Merchant pays about 2.65-3% + 10¢ online; interest income
Speed
Instant

Purchasing card

Who funds it
Bank; Visa requires credit
Who owes
Company
Controls
Category blocks
Receipt burden (US)
Line items via Level 3 data, or the invoice
Cost and earnings
Merchant pays about 1.75% + 10¢ with validated Level 3
Speed
Instant

Virtual card

Who funds it
Bank, or the company's own funds
Who owes
Company
Controls
Merchant lock, amount, expiry
Receipt burden (US)
Emailed online receipt
Cost and earnings
Merchant pays about 2.7% + 10¢ online
Speed
Issued in seconds

Prepaid or just-in-time card

Who funds it
Company cash in a pooled account
Who owes
Company
Controls
Balance plus controls
Receipt burden (US)
Same as any card
Cost and earnings
About 2.65% + 10¢ at a bank under $10B; under $1 on $1,000 above
Speed
Instant

Out-of-pocket reimbursement

Who funds it
Employee, until repaid
Who owes
Company owes the employee
Controls
Policy, after the fact
Receipt burden (US)
Same, all from the employee
Cost and earnings
Roughly $50-60 per report (2015); employee keeps card rewards
Speed
Days to weeks

Per diem or mileage allowance

Who funds it
Company, at a set rate
Who owes
Company
Controls
Rate tables, day counts
Receipt burden (US)
Amount deemed proved; purpose still needed
Cost and earnings
IRS, GSA or CRA rates; low admin; employee keeps savings
Speed
With the claim

Central travel account

Who funds it
Bank; billed to the company
Who owes
Company
Controls
Booking policy at the agency
Receipt burden (US)
The agency's invoice
Cost and earnings
Card interchange; no employee float
Speed
Billed directly

Rates are rough, as of October 2026, from Visa's US table. Rebates are benchmarks from filings and public contracts. The regulated debit and prepaid cap applies at issuers with $10B or more in assets.

Why do personal cards survive? The employee keeps the points, and the IRS doesn't tax personal use of business-travel miles unless they're cashed in. Large companies' bank programs, and the US federal travel card, still use individual liability. Each instrument settles who lends to whom: the bank to the company, the company to the employee, or the employee to the company.