How do you deal with a child who constantly lies to your face?

1.Confront her with examples of her lies

2. Confirm your love for her

3. Tell her you and her father do not want to hear lies only truth

4. Tell her if she can not tell you the truth about any given subject you would rather her not talk about that subject at all.

if she is 18 now and the problem is just now being brought forward then there isn't a whole lot you can do. if she has a car take it away from her when she doest listen, you don't have to beat a child to give them discipline there are other ways if she doesn't want to listen and lie to you, you make her listen, every time she lies take stuff away. also let her lieing get her into trouble.set up a situation that is out side the home and where there are others around let her be embarrassed or make it that she could get in trouble with the law. if you scare her it could help

I wish you elaborated on the type of lies I'm sure she knows it is wrong to lie. Let her know that trusting her will always be an issue because of all the lies she tells. Call her out on all her lies the minute you catch her in one. Try to get to the root of the lies, is she hiding something? No one just lies all the time for no reason.

I am in the same situation as you are and my stepdaughter is 16. The fact that we love her is known to her already but the fact that she intends to lie is something she had, since i took her in, started to avoid.. She has been lying so professionally that her mum has given up on her and sent her to me and her father... Well, my principle is .. if she is to stay with me.. she will have to act as an adult and be responsible for her doings... and i make it to the point to let her know that no one will want her to be with if she keeps on doing what she did with her mum so she should know what she should do and not do. i have not scolded nor have i punish her.. i have instead sit and talk sense into her and i found that talking to her and making her see the problems if ever she create another lie will lead to... there and then she have been trying to avoid lying and i am thankful and praising her as she is making an effort to avoid lying... i hope what i share with you will be helpful..

My oldest daughter is a chronic lair, she can't help herself it seems like, lies about things that mean nothing. Try sitting down and talking to her, but she's going to have to put out the effort to stop, most likely, she knows that lies are wrong, if you find out the answer, let me know, lol.

she's a bit old to retrain

I guess openly disbelieving everything she says, even when you know she is telling the truth may get it through to her.

Annoy her by questioning everything she says.

Say "i don't believe you" frequently. She'll get the message

Be open and upfront when you think she's lying.

And if she asks you a question, always tell the truth even when you don't want to

Sit her down and talk to her, if that doesn't work suggest a one time visit to a therapist - if its pathological type lying it's best for her to have it dealt with before striking out on her own.

tell her to act like an adult and grow up, you and your husband sounds like wongerful people and good parents, who only wants the best for YOUR child. Make her see that she is no longer a lil kid and she cannot carry on like that as outside in the REAL WORLD, people wont take stories...