How do I increase estimated tax payments for September and January 2020 when electronic payments were already set up when the tax return was filed?

[IRonMaN · Accepted solution]

You can't through ProSeries.  Either make the additional amounts by way of paper estimate vouchers or make them electronically directly to the IRS.

[Just-Lisa-Now-]

You can call in and cancel the scheduled payments:

To revoke or cancel any EFW payment, contact the U.S. Treasury Financial Agent, toll-free, at 1-888-353-4537. Cancellation requests must be received no later than 8:00 p.m., Eastern Standard Time, at least two business days prior to the scheduled payment date.

Then use DirectPay to make higher ones...they only let you schedule 30 days in advance through DirectPay though, so its kind of a hassle.

[Accountant-Man]

Manually pay more.