One thing I’ve learned from working around financial operations is that accountants don’t create most documentation problems. They inherit them.
An employee makes a purchase, a manager approves it, and the business moves on. If the receipt or transaction details aren’t recorded, someone in accounting has to reconstruct the decision later.
It’s an awkward way to maintain financial records.
APQC’s 2025 research found that monthly financial consolidation took five days among top performers and ten among bottom performers. Another APQC analysis from November 2026 reported reconciliation times of at least five hours per bank account at the 75th percentile.
Neither finding isolates expense documentation, although both show how much work financial close processes involve.
The discussion ahead will cover common documentation lapses, the additional workload they create and practical approaches to improving client recordkeeping through consistent processes and digital tools.
How Incomplete Records Complicate Month-End Reconciliation
Reconciliation is a matching exercise, and matching needs both sides of the story. The bank feed shows a date and an amount. The receipt supplies the vendor, the tax and the purpose. Without it, an accountant is left guessing whether a $148 charge was software, a client dinner or something personal.
In my experience, the guessing costs more than the missing document itself. Someone has to trace the charge and email the cardholder, who has probably forgotten the purchase. Vague descriptions make coding unreliable, and a missing tax invoice can put input credits at risk.
The same problem arises with employee travel expenses. A card statement confirms the payment, but it may not establish the business purpose or provide enough information to support a tax deduction.
Timing compounds the problem.
The IRS’s 2025 Publication 463 reinforces the importance of timely records. For covered expenses, it explains that documentation prepared near the transaction date generally carries greater evidentiary value than information reconstructed later.
I’ve always considered this an important distinction in accounting. Matching a transaction confirms one part of the record, while supporting documentation establishes its proper treatment.
When information arrives late, accountants must revisit entries, verify supporting evidence and sometimes adjust classifications. These repeated checks consume time that could otherwise go toward reviewing financial results and advising clients.
Approval Does Not Guarantee Complete Documentation
Approval and documentation tend to get treated as one control, though they answer different questions. A manager signs off because the purchase is legitimate and within budget. Then the receipt is missing, the description is vague, or the charge belongs to the wrong entity. The transaction is authorized without being ready for accounting.
Three things need to be settled separately:
- Approval confirms the business authorized the spend.
- Supporting documentation establishes what the transaction was and what it cost.
- Coding information determines the correct accounting treatment.
An approval history tells accountants who said yes. It doesn’t necessarily tell them how to classify the expense.
Under US tax rules, the IRS calls the required proof substantiation. Publication 463 sets stricter standards for travel and meals than for routine supplies. Accountants know the standard changes with the transaction, so one checklist for every expense won’t work.
Small Documentation Errors Can Create Larger Reconciliation Problems
From the accountant’s chair, a missing receipt triggers a chain reaction:
- A charge appears in the bank feed or card statement.
- No receipt or business explanation is available.
- The accountant contacts the client or employee for clarification.
- The item stays unresolved or gets posted provisionally, depending on the firm’s policies.
- Late answers trigger corrections, adjustments and further reconciliation.
Each step carries technical weight, because without documents classification becomes guesswork and sales tax or VAT treatment stays uncertain. Capitalization decisions get delayed, and the expense can land in the wrong accounting period.
The two are separate processes, though unmatched transactions and open exceptions can still delay account reconciliation.
The real cost is repeated handling of the same transaction, especially when clarification passes through several people. One receipt can mean a request, a reply, a provisional posting and a later correction. In a 2026 survey of 355 professional services firms, close to 20 weekly hours went to document collection and follow-ups. Nearly 70% said missing information delays at least one in ten engagements.
Accountants Need Better Controls Before the Books Reach Them
Accountants can flag missing documents all month, but they can’t make a client’s employees submit them. That’s where the conversation needs to move from chasing receipts to agreeing on responsibilities.
I’d start with four changes that address the problem at its source:
- Capture it at the point of spend. Receipt, business purpose and coding details should arrive within days, while the buyer still remembers why.
- Define “complete” by category. A software subscription needs supplier, entity and tax details, while a client dinner needs guests and purpose. One form for every purchase invites blanks.
- Review exceptions all month. Missing receipts and mystery merchants are easy to forgive one at a time. Give each a named owner before the pile becomes a mountain.
- Write the escalation rules down. Decide who resolves an exception, how fast, and how month-end leftovers are treated. A flagged provisional posting keeps the books moving while the question stays visible.
The difficult part is getting clients to follow through. An accounting firm can recommend these controls, but client leadership must make employees accountable for maintaining records.
I’d also track repeat exceptions by department or expense type. Persistent problems usually call for changes to the process, not another reminder. The idea is to give accountants reliable information earlier, while keeping responsibility for documenting purchases with the people making them.
How Digital Workflows Improve Expense Record Accuracy
Bank feeds can import transactions automatically, while receipt capture tools extract dates, amounts and merchant details. However, neither can reliably establish the business purpose of every purchase or guarantee the correct accounting treatment.
I’d focus on features that help accountants resolve incomplete records well before they enter the books:
- Receipt matching to connect supporting documents with transactions.
- Required fields to capture business purposes, expense categories and relevant tax details.
- Duplicate detection and exception alerts to identify records needing attention.
- Accounting integrations to keep approved transaction information consistent across systems.
The real benefit comes from reducing the number of transactions requiring manual investigation. Automating data entry is useful, but accountants still need reliable supporting information and clear procedures for reviewing exceptions.
In Closing
Documentation problems are born at the point of purchase and discovered at month-end, usually at the worst possible time. Accountants can design the requirements, review exceptions and flag patterns, though lasting change depends on clients owning the habit.
Digital tools shorten the path, provided the data entering them is sound. Perfect records carry a price too, so controls should scale with risk. Tax-sensitive spend deserves a tight standard, while small routine purchases can run on a lighter touch.
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Rajith Shaji is the co-founder and CEO of Volopay, a global financial technology company building the financial operating system for modern businesses. Volopay helps businesses manage corporate spending, payments, expenses, accounts payable, accounts receivable, and other financial operations through a unified platform.
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