Late BAS lodgement? How to get back on track

An overdue BAS can sit in the back of your mind while you manage customers, staff, and everything else your business needs.

Perhaps you’re missing receipts. Perhaps your bookkeeping has fallen behind. Or perhaps you’re worried about how you’ll pay the amount owing.

The next step starts with understanding what needs attention. Preparing your BAS, lodging it, and paying it involve different actions. When you know which stage has stalled, you can work with your BAS agent to move forward.

Here’s how to tackle late BAS lodgement and build a more manageable routine.

Preparing, lodging, and paying: what’s the difference?

Your business activity statement, or BAS, reports obligations such as goods and services tax (GST), PAYG withholding, and PAYG instalments, where applicable. Business.gov.au explains what a BAS covers and how businesses can lodge it.

Think of the process in three parts:

Sending records to your bookkeeper doesn’t confirm lodgement. Approving a draft doesn’t confirm payment.

Ask for a clear status update: What have we completed, what remains outstanding, and who owns the next step?

What to do if your BAS is overdue

Start by contacting your registered BAS or tax agent. You can begin that conversation even if your records are incomplete.

Explain which periods concern you, what information you have, and whether cash flow has contributed to the delay. The Australian Government recommends contacting the ATO as soon as possible if you cannot lodge or pay on time.

Confirm exactly what’s outstanding

Ask your agent to check each relevant business entity and reporting period.

Create a short list showing:

• BAS periods awaiting preparation.
• Drafts awaiting your approval.
• Statements that you have already lodged.
• Unpaid amounts and any existing payment arrangements.
• ATO notices or requests that need a response.

This separates a bookkeeping backlog from a lodgement problem or payment shortfall. Each needs its own action.

Agree on a catch-up plan

Your agent can help determine the order of work, including whether earlier periods affect later figures.

Agree on the documents you’ll provide, the questions your agent needs answered, and realistic completion dates. If several BAS periods are overdue, also assign someone to keep current bookkeeping moving.

That helps prevent the next reporting period from joining the backlog.

Address payment concerns early

If you cannot pay the full amount, tell your agent and contact the ATO about your options. Continue progressing an accurate BAS towards lodgement while addressing the payment issue.

Ask whether a payment plan suits your circumstances, what approval requires, and how interest may affect the balance. Build any proposed repayments around a realistic cash flow forecast that also allows for new tax obligations.

Late lodgement and late payment can have different consequences. Ask your agent to check any penalties or interest and whether grounds exist to request relief. Don’t assume the ATO will grant an extension, approve a plan, or remove charges automatically.

Build a BAS workflow with clear responsibilities

Once you’ve identified the backlog, give each stage an owner and a deadline.

The following workflow provides an illustrative routine for future BAS periods. Work backwards from your confirmed lodgement and payment dates. These suggested targets are internal planning dates, not ATO deadlines.

A records cut-off gives your agent time to check the information. It doesn’t change which transactions belong in the reporting period. Tell your agent promptly if you discover another document or error after the cut-off.

Give reconciliation and approval enough time

Accounting software helps organise transactions, but someone still needs to check the records.

For example, a bank feed may contain duplicate entries, a transfer may look like income, or a purchase may carry the wrong GST code. Your agent also needs to understand significant transactions, such as equipment purchases or private expenses paid through the business.

During approval, check that the draft covers the correct entity and period. Ask about unexpected movements and confirm that you have supplied all relevant information.

Choose an authorised backup approver where appropriate. A director’s leave or an unanswered email can otherwise hold up the final step.

Clear responsibilities also belong in your service agreement. The Tax Practitioners Board recommends written engagement terms that explain the work, client obligations, communication arrangements, and fees.

Questions to ask your BAS agent

Use these questions to make your next conversation practical:

• Which BAS periods remain outstanding, and what stage has each reached?
• What records or answers do you still need from me?
• What lodgement and payment dates apply to my business?
• Does any agent lodgement concession apply to this particular period?
• Who prepares, reviews, approves, and lodges the BAS?
• How will you confirm successful lodgement?
• If I cannot pay in full, what should I discuss with the ATO?
• What will the catch-up work cost, and what does it include?
• What should we change before the next reporting period?

If you’re engaging a new provider, check their registration. The Tax Practitioners Board explains which services constitute BAS services and the registration requirements for providing them for a fee.

Make the next BAS easier to manage

Once you’ve caught up, keep the routine simple: capture documents regularly, reconcile accounts throughout the period, and respond to queries before they accumulate.

Set reminders for records, approval, lodgement, and payment separately. Review your expected BAS liability during the period so you can plan cash reserves earlier.

At Invigor8, we look beyond the overdue statement to understand what interrupted the process, whether that involves recordkeeping, responsibilities, or cash flow.

Contact Invigor8 to discuss your BAS backlog and the bookkeeping support your business needs to get back on track.

We see beyond the numbers.

This article provides general information. Ask your registered BAS or tax agent to confirm the requirements that apply to your business.