The end of the financial year is approaching and that can only mean one thing; it’s nearly time to lodge your tax return – and (hopefully) receive some cash back.

Now is a great time to take stock of all the money you’ve spent on work-related items during the course of the year. The question is, are you claiming everything you’re entitled to?

The general rule is that if you incur an expense as part of your job and aren’t reimbursed by your employer, you can make a claim. Depending on what you do for a living, that can give rise to some unexpected deductions.

Here are some of the things you may not know you can claim (plus a few things you can’t claim) for five of the most popular professions.

Teachers and other educators

Speaking of tax, why is it we pay GST on tampons and pads, again? Post continues.

Healthcare workers

Businesswomen and corporate ladies

Lady startups and small business owners

The last super guarantee payment of the current financial year is due to be paid to the ATO just after the end of the financial year. If you pay it early – before June 30th – you can claim the tax deduction this financial year.

Lawyers and legal ladies

And finally…

Keep records! It doesn’t matter what you’ve spent; if you can’t prove that you spent it, you can’t claim it. So, gather together all those receipts and invoices. If you’ve lost a receipt, try to get a copy from the retailer. If that fails, a bank or credit card statement might do if you can clearly identify the item. Don’t try to claim if you don’t have the paperwork; you’re leaving yourself open to an ATO audit.

Mark Chapman is the Director of Tax Communications at H&R Block.