How to Change Your Accountant Smoothly and Avoid Common Mistakes

Changing your accountant looks like a routine staffing matter, yet in practice it can put real strain on your business. Companies often lose critical context in the process: access credentials disappear, no one remembers what was agreed with suppliers and customers, and the paperwork descends into chaos. The result is fines, blocked tax invoices, late filings, cash-flow gaps and even conflicts with employees over delayed salaries.

Avoiding this takes a systematic approach with a clear action plan and checkpoints. In this article the UHY Prostir team explains how to prepare the handover, which documents and registers should be ready before the incoming accountant arrives and which common mistakes to steer clear of.

Common scenarios for changing an accountant and how they affect the handover

• Sudden resignation. The company has to act fast: collect the documents, restore access and run a rapid review of the books.
• Planned replacement. There is time to close the period, draw up a handover checklist and bring the new accountant up to speed.
• Moving to outsourcing. It may require redesigning processes and clearly defining the expected deliverables.
• Scaling up. One accountant can no longer cope and a team is needed.
• Crisis situations. Tax audits, debts or litigation: the process must stay under the control of management and lawyers.

Mapping the accountant’s areas of responsibility

Before changing your accountant, it is important to understand exactly which processes they were responsible for. To keep the handover orderly, draw up a clear map of their duties:

• taxes and reporting;
• payroll and HR records;
• source documents and contracts;
• assets and inventory;
• management accounting;
• access to banks, online government accounts and accounting software;
• communication with banks, the State Tax Service (STS) and auditors.

Preparing the handover: a step-by-step plan

In practice, most problems stem not from the change itself but from the lack of a structured handover. So before the accountant leaves or the books move to a new accountant, prepare a step-by-step plan.

1. Set the handover date. Pick a specific date as of which the accountant hands over all data, and record it in a formal internal order.
2. Draw up a handover schedule. List what exactly is being handed over, assign an owner to each process and set deadlines and the format in which information is passed on.
3. Close the period. Where possible, close all transactions for the reporting period. If that cannot be done, list the open items and hand them over separately.

Documents and registers: what should be ready before the handover

Handing over the books means transferring not just responsibility but a large volume of information and working processes. Before the change takes place, tidy up the core documents and prepare registers so the incoming accountant can get up to speed quickly:

• Contract register — all active, closed and problem contracts.
• Source document register — review the documents in full rather than on a sample basis, reconcile them with the accounting system and flag any that are missing. Check that the accountant’s signature is present wherever it is required.
• Payroll register — the list of employees, pay rates, work schedules and withholdings.
• Asset and inventory register — inventory on hand, fixed assets, physical counts, write-offs and the people responsible.
• Reporting and payment calendar — every report the company files, with a preparation schedule and tax payment deadlines.

Access rights and electronic signatures

Access to accounting systems and online services deserves special attention during the change. It is wise to prepare a list of all accounting software and online accounts in advance, with logins, passwords and the people responsible. As soon as the accountant leaves, revoke their qualified electronic signature (QES) certificate — the key that gives documents legal force in Ukraine — and change the passwords in every system they worked in. It is also worth backing up the accounting databases and storing the copies in a secure location to avoid losing data or access later on.

The handover certificate

Be sure to draw up and sign a handover certificate. There is no prescribed template, but the certificate itself must carry all the mandatory details required of a source document under Ukrainian accounting rules. In it, record:

• the list of documents being handed over;
• the status of reporting and tax payments;
• the balance of taxes owed or overpaid, as shown in the taxpayer’s STS Electronic Cabinet (the tax service’s online portal);
• account balances and the amounts of receivables and payables;
• information about the most recent statutory and tax audits, any violations found and pending requests from the authorities;
• details of access rights and electronic signatures.

It is also useful to attach an explanatory note describing how the company keeps its books, plus a list of critical tasks for the first month.

Reviewing the state of the books before the handover

Before the new accountant starts, assess the current state of the books and identify the issues that need attention first. This review helps catch errors, open transactions and potential tax risks in time. What to do:

• Reconcile the data. Check that bank and cash balances, inventory and settlements with the tax authorities and business partners all match the books.
• Identify problem areas: late filings, blocked tax invoices (the tax service can suspend a VAT invoice’s registration), debts and open requests from the STS.
• Compare the accounting and management figures. Reconcile the books with your P&L, cash flow statements or budgets.
• Prioritize the fixes. List the critical errors that can be corrected without halting operations.

How to organize a transition period

If circumstances allow, plan a short transition period during which the outgoing and incoming accountants work on the handover in parallel. Set clear rules and areas of responsibility: who approves and signs payments and reports, and who signs off on adjustments and disputed items. Introduce a weekly checklist with task statuses: what is done and what is being monitored. Hold an introductory meeting with the team as well, and explain whether internal processes will change in any significant way.

Common mistakes when changing an accountant and how to prevent them

• No firm handover date and an unclosed period. The new accountant is left reconstructing transactions and figuring out which tasks were never finished. How to avoid it: agree on a handover date and close as much of the period as possible.
• Incomplete source documents. Tax risks and disputes with business partners. How to avoid it: build a document register that flags what is missing and collect the gaps before the handover.
• Access rights and electronic signatures never handed over. Operations stall: no way to file a report, register tax invoices or make a payment. How to avoid it: change the passwords, revoke the old signature keys and issue new ones.
• No registers or reporting calendar. Missed filing and payment deadlines. How to avoid it: hand over a reporting and payment calendar with the key deadlines, the status of current tasks and the people responsible.
• The outgoing accountant keeps a hand in the day-to-day. Lines of responsibility blur and work gets done twice. How to avoid it: sign a formal handover certificate and define who owns each area, and from what date.

What to include in the contract if the books are outsourced

A contract with an outsourcing firm should clearly define service standards and responsibility.

• SLA (Service Level Agreement) — deadlines for filing reports, making payments and preparing documents, and how quickly queries are answered.
• Source documents — who collects them and checks that they are complete: the provider or the company’s own departments.
• Data storage — where the accounting database and archives are kept and who has access.
• Staffing changes — the handover procedure if the provider’s own accountant changes, so no data is lost and nothing stops.

Signs it’s time to switch to outsourcing

• The books are kept chaotically, with source documents scattered across folders, email and messaging apps.
• The company is scaling fast: transactions, headcount and business lines keep growing, and one accountant is no longer enough.
• The company constantly faces several tax audits or STS requests running at once.
• Errors and open issues have piled up in the books, calling not just for day-to-day bookkeeping but for a review and restoration of specific areas of the accounting records.
• You need an accountant with hands-on experience in your particular industry and access to a team of expert accountants.

In these situations, an outsourced team can restore the accounting records after a change of accountant far faster and with much less stress.

UHY Prostir helps companies get through a change of accountant without the stress: we run an audit, organize the transfer of documents and access, work under an SLA and keep the books running without interruption. Learn more about accounting outsourcing at UHY Prostir or contact our team.

Viktoriia Novodvorska (Project Manager)