No, as long as you submit payment before the April 17, 2018 deadline in order to avoid any penalties or interest on the tax due. If you wish to file now but pay your tax due later, you can pay your federal tax due by visiting www.irs.gov/Payments and choose a payment option when you are ready to do so.
If you choose to mail a paper check at a later time, you can mail the check along with the Form 1040-V payment voucher. You would mail the check and the form to the address shown on the form. The Form 1040-V payment voucher should be included with your printed tax return, you can also print the form here https://www.irs.gov/pub/irs-pdf/f1040v.pdf.
The same applies for your state payment, you would just need to pay the state taxes due prior to April 17,2018. Many states also offer the option to pay online if you prefer that method. If you would rather mail a check, there should be a payment voucher for your state included in your tax return.
You can also obtain your state's payment voucher by visiting your state Department of Revenue website. You can also pay online via this method as well. Please see the FAQ below:
How to contact your State Department of Revenue:
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