State of Virginia - why do I have to file electronically?

[rdlatimer]

Listed below are the requirements from the State of Virginia Tax website.   Do these numbers apply to my Virginia or Federal tax return?  Turbo tax is saying I must file Virginia payment  electronically because of these requirements below .  Turbo Tax calculates my Virginia estimated payments less than $700, although my Federal estimated payments are calculated as greater than $6000

(From the State of Virginia:)

Electronic filing requirement
You must submit all of your income tax payments electronically if:

Any installment payment of estimated tax exceeds $1,500 or
Any payment made for an extension of time to file exceeds $1,500 or
The total income tax liability for the year exceeds $6,000

[MaryK4]

You do not have to file electronically if you do not want to.