What this calculator does
Dallas commuters on the Dallas North Tollway, President George Bush Turnpike, Sam Rayburn Tollway or Chisholm Trail Parkway pay per gantry, and the cost adds up over a year. This calculator estimates monthly and yearly tolls, compares TollTag and ZipCash, and puts a price on each hour of time saved.
How to use it
- Enter the toll-road miles each way.
- Enter commute days per week.
- Choose TollTag or ZipCash.
- Keep the average per-mile rate or replace it with your route's actual toll.
- Enter the minutes saved compared with free roads.
The formula
Daily toll = miles each way × 2 × rate per mile × (1.5 for ZipCash). Monthly = daily × days per week × 52 ÷ 12. Cost per hour saved = daily toll ÷ (minutes saved × 2 ÷ 60).
Worked example
Using the default inputs shown in the calculator above:
| Item | Amount |
|---|---|
| Toll miles each way | 12 |
| Rate per mile (TollTag) | $0.240 |
| Round trip | $6 |
| Days per week | 5 |
| Monthly tolls | $125 |
Estimated monthly tolls: $125. $5.76 a day round trip · $1,498 a year.
Tolls scale with the miles you drive on toll roads, times two for the round trip. You are using TollTag pricing; ZipCash would cost about 50% more. Dividing the cost by the time saved values that time at about $14.40 an hour.
Tolls and commuting in Dallas
DART runs the largest light-rail network in Texas, but most Dallas commuters drive, and many use North Texas Tollway Authority roads such as the Dallas North Tollway and President George Bush Turnpike. Paying by TollTag is cheaper than being billed by mail through ZipCash. NTTA adjusts rates on a schedule, typically each July. TxTag and EZ TAG work on NTTA roads too.
Common mistakes and tips
- Paying by ZipCash when a free TollTag account would save about a third.
- Forgetting tolls when comparing a suburban home with a closer, pricier one.
- Ignoring the time value — tolls that save 20 minutes a day can be worth it.
- Not checking the NTTA toll calculator for your exact entry and exit points.
Frequently asked questions
How much are tolls in Dallas?
It depends on the road and distance. This estimate uses an average TollTag rate per mile; check NTTA's calculator for your route.
Is ZipCash more expensive than TollTag?
Yes, ZipCash (billed by mail from your license plate) costs about 50% more than TollTag rates.
Do Houston EZ TAGs work in Dallas?
Yes. TxTag, EZ TAG and TollTag are interoperable across Texas toll roads.
Can tolls be deducted?
Commuting tolls are personal costs and generally not deductible. Business-travel tolls can be.
Sources
Disclaimer
This calculator provides estimates for educational purposes only and is not financial, tax, legal, real estate, or insurance advice. Consult a licensed professional before making decisions.