Hi @mrudacille
It is frustrating when we can not accurately calculate our taxes. However, what you can do, is use the Calculators through out the year as your income comes in and either adjust your withholdings or make an estimated tax payment to the IRS to make the burden less at tax time.
This Calculator is available year round: https://www.irs.gov/individuals/tax-withholding-estimator
If you have further questions, please reply below.
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